Method, apparatus and computer program

By optimizing HARQ-ACK feedback to align with cell DTX patterns, the solution addresses inefficient energy use and errors in 5G networks, improving energy efficiency and reducing power consumption.

EP4443795B1Active Publication Date: 2026-06-17NOKIA TECHNOLOGIES OY
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
NOKIA TECHNOLOGIES OY
Filing Date
2024-03-26
Publication Date
2026-06-17

AI Technical Summary

Technical Problem

Existing communication systems face challenges in managing network energy consumption, particularly in 5G networks, due to inefficient HARQ-ACK feedback mechanisms during cell discontinuous transmission (DTX) periods, leading to excessive power consumption and potential errors in HARQ-ACK codebook determination.

Method used

The solution involves configuring UEs to omit HARQ-ACK feedback for resource allocations that overlap with cell DTX non-active periods, adjusting HARQ-ACK codebooks to account for these periods, and transmitting feedback only during active periods, thereby optimizing energy usage and reducing errors.

Benefits of technology

This approach reduces network energy consumption and minimizes errors in HARQ-ACK feedback, enhancing energy efficiency and operational performance in 5G networks.

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Abstract

There is provided an apparatus. The apparatus comprises: means for obtaining information of one or more non-active periods of a cell that is in discontinuous transmission; means for receiving at least one resource allocation for the apparatus; means for determining one or more resources of the at least one resource allocation that overlap fully or in part with the one or more non-active periods of the cell; and means for configuring a hybrid automatic repeat request acknowledgement codebook based at least in part on the determining one or more resources of the at least one resource allocation that overlap fully or in part with the one or more non-active periods of the cell.
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